SnFe2O4 Nanocrystals as Highly Efficient Catalysts for Hydrogen‐Peroxide Sensing |
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Authors: | Dr Kuan‐Ting Lee Dai‐Ming Liu Prof Shih‐Yuan Lu |
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Institution: | Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan |
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Abstract: | SnFe2O4 nanocrystals (NC), prepared with a simple one‐step carrier‐solvent‐assisted interfacial reaction process, were developed as highly efficient catalysts for hydrogen peroxide sensing. These NCs, with a size of around 7 nm, served as the sensing catalyst and were decorated onto the pore surfaces of a porous fluorine‐doped tin oxide (PFTO) host electrode, prepared from commercial FTO glass with a simple anodic treatment, to form the sensing electrode for hydrogen peroxide. The SnFe2O4 NCs‐loaded PFTO electrode exhibited an ultra‐high sensitivity of 1027 mA m ?1 cm?2 toward hydrogen peroxide, outperforming Pt NCs‐loaded PFTO electrodes. The SnFe2O4 NCs‐loaded PFTO electrode proved a promising relatively low cost, high performance sensing electrode for hydrogen peroxide. |
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Keywords: | biosensors fluorine-doped tin oxide H2O2 sensing platinum SnFe2O4 |
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